From: Alexander Graf <agraf@suse.de>
To: Gavin Shan <gwshan@linux.vnet.ibm.com>, qemu-ppc@nongnu.org
Cc: aik@ozlabs.ru, alex.williamson@redhat.com,
qiudayu@linux.vnet.ibm.com, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v8 4/4] sPAPR: Implement sPAPRPHBClass::eeh_handler
Date: Thu, 05 Jun 2014 15:00:17 +0200 [thread overview]
Message-ID: <539069E1.8040309@suse.de> (raw)
In-Reply-To: <1401951221-32613-5-git-send-email-gwshan@linux.vnet.ibm.com>
On 05.06.14 08:53, Gavin Shan wrote:
> The patch implements sPAPRPHBClass::eeh_handler so that the
> EEH RTAS requests can be routed to VFIO for further handling.
>
> Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Just to make sure I grasp this correctly.
We have PHBs that are VFIO PHBs and PHBs that are emulation PHBs.
Emulation PHBs can only have emulated devices attached. VFIO PHBs can
only have a single IOMMU group's devices attached each. A container can
not span 2 different VFIO PHBs.
Is this correct? If not the code below needs to take care of any
abstraction we have in between and maybe limit scope a bit to make sure
the guest doesn't kill devices on other PHBs :).
Alex
next prev parent reply other threads:[~2014-06-05 13:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-05 6:53 [Qemu-devel] [PATCH v8 0/4] EEH Support for VFIO PCI Device Gavin Shan
2014-06-05 6:53 ` [Qemu-devel] [PATCH v8 1/4] sPAPR: Implement EEH RTAS calls Gavin Shan
2014-06-05 12:09 ` Alexander Graf
2014-06-06 0:59 ` Gavin Shan
2014-06-05 6:53 ` [Qemu-devel] [PATCH v8 2/4] headers: Update kernel header Gavin Shan
2014-06-05 6:53 ` [Qemu-devel] [PATCH v8 3/4] VFIO: Introduce helper vfio_pci_container_ioctl() Gavin Shan
2014-06-05 12:11 ` Alexander Graf
2014-06-06 1:00 ` Gavin Shan
2014-06-05 18:27 ` Alex Williamson
2014-06-06 1:05 ` Gavin Shan
2014-06-05 6:53 ` [Qemu-devel] [PATCH v8 4/4] sPAPR: Implement sPAPRPHBClass::eeh_handler Gavin Shan
2014-06-05 13:00 ` Alexander Graf [this message]
2014-06-05 13:13 ` Alexey Kardashevskiy
2014-06-05 12:12 ` [Qemu-devel] [PATCH v8 0/4] EEH Support for VFIO PCI Device Alexander Graf
2014-06-05 18:31 ` Alex Williamson
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